657 DCR

657 Disk Chisel

The Wil-Rich 657 Disk Chisel is ideally suited for the first tillage pass in high residue conditions. Coulter disks on the 657 are offset from shanks to allow shank assemblies to properly till and bury crop residue.  The split-the-middle design offsets the coulter disks 7.5 inches (19 cm) from the shanks to dislodge root balls and more efficiently start the decomposition process. The combination of coulter disks in the front for sizing crop residue and careful shank placement around wheels minimizes plugging.

Specifications

Main Frame
  • 4″ x 6″ x ⅜” (10.1 x 15.2 m x 1 cm) tubular frame
STRAIGHT CUTTER GANGS (OPTIONAL)
  • 20″ (51 cm) diameter x .197″ (.5 cm) thick on 7½” (19 cm) spacing
  • Arbor bolt 1½” (4 cm) diameter
  • Visual gauge of relative cutter depth
SPECIFICATIONS
  • Under frame clearance: 30″ (76 cm)
  • Operating speed: 5 – 7 mph (8 – 11 kph)
  • HP (PTO) per foot: 15 – 20 (37 – 49 kW per meter)
SAFETY EQUIPMENT
  • Safety chain
  • Transport warning lights
Hitch
  • Cat. III, IV, or V tongue options for 1-1/2″ (3.8 cm), 2″ (5 cm),  or2-3/4″ (7 cm) diameter pin
Wheels
  • Walking tandem wheels: 11L x 15, 12-ply tires on 15 x 8 6-bolt rims
Shanks
  • Heavy duty 1,400 lb. (635 kg) spring cushion shanks on 15″ (38.1 cm) spacing at 50° approach
DISk UNITS (OPTIONAL)
  • 22″ (56 cm) diameter x .27″ (.7 cm) thick on 15″ (38 cm) spacing
  • Gang cutting angle: 12 degrees
  • Visual gauge of relative disc depth
SHANK WORKING DEPTH
  • Chisel plow shanks:  10″ (25 cm) maximum; Trip height 10″ (25 cm)
  • Coulters or disc:  5″ (14 cm) maximum

Gallery

Specifications

Rigid

Model Number
Straight Cutter Gang
Concave Disk Units
Working Width
Transport
Approx. Weight lbs.
Approx. Power Req’d
Width
Height
657 DC 11 18 10 11’3″
(3.4 m)
13’5″
(4.1 m)
5’8″
(1.7 m)
8,680
(3,937 kg)
170-250 HP
657 DC 13 22 12 13’9″
(4.2 m)
13’5″
(4.1 m)
5’8″
(1.7 m)
8,901
(4,037 kg)
200-280 HP
657 DC 15 26 14 16’3″
(5 m)
16’5″
(5 m)
5’8″
(1.7 m)
9,743
(4,419 kg)
245-340 HP
657 DC 18 30 16 18’9″
(5.7 m)
21’0″
(6.4 m)
5’8″
(1.7 m)
10,791
(4,895 kg)
280-380 HP

Folding

Model Number
Straight Cutter Gang
Concave Disk Units
Working Width
Transport
Approx. Weight lbs.
Approx. Power Req’d
Width
Height
657 DC 18 30 16 18’9″
(5.7 m)
13’5″
(4.1 m)
9’9″
(3 m)
12,186
(5,527 kg)
280-380 HP
657 DC 23 38 20 23’9″
(7.2 m)
13’5″
(4.1 m)
10’2″
(3.1 m)
14,505
(6,579 kg)
355-400 HP
657 DC 28 46 24 28’9″
(8.8 m)
18’0″
(5.5 m)
12’9″
(3.9 m)
16,527
(7,497 kg)
430+ HP
657 DC 33 54 28 33’9″
(10.2 m)
18’0″
(5.5 m)
15’3″
(4.6 m)
18,545
(8,412 kg)
500+ HP
657 DC 36 58 30 36’9″
(11.2 m)
20’6″
(6.2 m)
15’3″
(4.6 m)
19,441
(8,818 kg)
550+ HP
657 DC 39 62 32 38’9″
(11.8 m)
20’6″
(6.2 m)
16’6″
(5 m)
20,342
(9,227 kg)
550+ HP

Note: Approximate weight = (1400 lb trips x shank selection) + base weight + disk group + Cat IV hitch weight